US3287769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum melting and casting apparatus
Assignee: European Atomic Energy Community Euratom
•
Filing: 1963-12-30
•
Granted: 1966-11-29
•
Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Hess Ernst-Gunter
- 👤 Portal Marcel Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:42
CPC Classifications
C; C22; C22B; C22B4/00; B; B22; B22D; B22D18/00; B22D18/06; B22D27/00; B22D27/02; F; F27; F27B; F27B5/00; F27B5/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
APPARATUS FOR MELTING AND CASING VERY HIGH MELTING POINT AND/OR STRONGLY REACTIVE MATERIALS IN THE SAME FURNACE, COMPRISING A VACUUM ARC FURNACE WITH A HOUSING AND A FIXED WATER-COOLED MELTING CRUCIBLE, A LONGITUDINALLY DISPLACEABLE ARC ELECTRODE, A CHILL-MOULD CARRIED BY SAID ARC-ELECTRODE, AND A PRESSURE CONTAINER CONNECTED TO SAID FURNACE HOUSING.
Claim 2
Dependent Claim
51 words
APPARATUS FOR MELTING AND CASING VERY HIGH MELTING POINT AND/OR STRONGLY REACTIVE MATERIALS IN THE SAME FURNACE, COMPRISING A VACUUM ARC FURNACE WITH A HOUSING AND A FIXED WATER-COOLED MELTING CRUCIBLE, A LONGITUDINALLY DISPLACEABLE ARC ELECTRODE, A CHILL-MOULD CARRIED BY SAID ARC-ELECTRODE, AND A PRESSURE CONTAINER CONNECTED TO SAID FURNACE HOUSING.
References Cited (Backward Citations)
US2515060A
Cited
US2539625A
Cited
US3072982A
Cited
US2789152A
Cited
US2881489A
Cited
US2958719A
Cited
US3213495A
Cited
US3186043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |